#A63F2D#A63F2D

#A63F2D is a mid, vivid red. Relative luminance 0.119; OKLCH L 50.7% C 0.140 H 32.1°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#A63F2D
RGB	rgb(166, 63, 45)
HSL	hsl(9, 57%, 41%)
HSV	hsv(9, 73%, 65%)
CMYK	cmyk(0%, 62%, 72.9%, 34.9%)
CIE-LAB	lab(40.98, 41.40, 32.75)
CIE-LCH	lch(40.98, 52.79, 38.35°)
OKLab	oklab(50.7% 0.1185 0.0743)
OKLCH	oklch(50.7% 0.14 32.1)
XYZ	xyz(17.9789, 11.8539, 3.8234)
Luminance	0.1185 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F2D #2D94A6

analogous

#A62D58 #A63F2D #A67C2D

triadic

#A63F2D #2DA63F #3F2DA6

tetradic

#A63F2D #58A62D #2D94A6 #7C2DA6

square

#A63F2D #58A62D #2D94A6 #7C2DA6

split-complementary

#A63F2D #2DA67C #2D58A6

monochromatic

#461A13 #762D20 #A63F2D #CC5844 #D98374

Accessibility & contrast

On white

6.23

#A63F2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#A63F2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F2D

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F2D	#FFFFFF	#000000	##FFFFFF
##A63F2D	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B522B

Deuteranopia (green-blind)

#75692A

Tritanopia (blue-blind)

#B6273B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a63f2d;
/* rgb */ color: rgb(166, 63, 45);
/* oklch */ color: oklch(50.7% 0.140 32.1);

Tailwind

colors: {
  custom: {
    50: '#c77867',
    500: '#a63f2d',
    950: '#000000',
  },
}

SCSS

$custom: #a63f2d;
$custom-light: #c77867;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f2d",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 45
  },
  "hsl": {
    "h": 8.926,
    "s": 57.346,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50699,
    "c": 0.1399,
    "h": 32.1
  },
  "luminance": 0.11851
}

Semantic roles & 50–950 ramp

primary

#A63F2D

secondary

#6EB5C1

accent

#CAE147

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63F2D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →